Efficient reduction of brake dust generated by vehicles
The technology comprises a novel design of a brake dust filter hood, which in combination with a procedure efficiently captures brake dust generated by vehicles with disk brakes.
The non-driven and rigid utility vehicle chassis offers significant lightweight advantages, improved suspension properties and a built-in wheel alignment mechanism.
Sustainable composite materials and functional structures
A process technology is suggested, which enables an efficient manufacturing of functional composite structures with a plant-based core material and relatively short processing times.
A signal filter and an efficient procedure are presented, which enable the online filtering of interferences with known frequencies with a minor or rather no phase loss and accordingly without signal delay.
We present a new technology which leads to the development of surface micro structures and a black appearance of Ti containing, commercially available glasses by irradiation with an excimer laser (ArF laser with 193 nm wavelength and 20 ns pulse duration). The technology can be accomplished in a standard air environment and does not require vacuum or inert gas.
A novel hub for a free from play transmission of relatively high torsional moments between a shaft and a hub is presented. Moreover, versatile applicable hubs are suggested, by considering manufacturing and supply effort and component variety.
A novel technology for the mechanical stop of one or multiple rotating propellers is suggested. The emergency propeller stop is achieved by combining a material-mediated engagement mechanism with temporal coordination of rotor contact.
Effiziente Entfernung von Restsauerstoff aus Inertgasen
Ein hocheffizientes Verfahren zur Entfernung von Restsauerstoff aus Edelgasen wird vorgeschlagen, das den Einsatz hochreaktiver Substanzen umgeht und die Verunreinigung von Edelgasen vermeidet.
Efficient removal of residual oxygen from inert gases
A highly efficient process for the removal of residual oxygen from inert gases is suggested, which bypasses the use of highly reactive substances and avoids contamination of inert gases.
Current transformer as power sensor for cold atmospheric plasmas
This compact and cost-effective technology facilitates a real-time, simultaneous measurement of plasma voltage and plasma current with a combined device in the high-voltage circuit of a cold atmospheric plasma. The system exhibits a good time resolution and enables a live plasma self-regulation.
The invention describes multifunctional, self-locking connection hook elements, which combine features of a rigging plate and a hook in one component. The components can be produced cost-effectively from plastics and metals.
A novel production method for a biobased adhesive, which comprises a tailored lignin structure as main component, is presented. The process technology overcomes the use of toxic phenol and formaldehyde, while the resulting adhesive exhibits good physicochemical and mechanical properties.
A stretched flexible hollow fiber is proposed as a waveguide in high-energy pulse compressors. This approach leads to superior straightness virtually independent of the fiber length. It is particularly well suited for fibers with inner diameters much larger than the wavelength, where the main limitation for the fiber length is losses due to undesired fiber bending.
A method has been found for freeform shaping of optical surfaces via a stress-induced viscous deformation of glass plates. Fused silica substrates can be deformed by covering them with substoichiometric silicon oxide followed by a laser patterning process and an annealing step.
Z-shifter for diffractive labeling of curved surfaces
The newly developed method allows for shifting of the interference plane in the Z-direction during diffractive marking of surfaces with a grating interferometer. Plane-parallel plates are used, the rotation of which introduces a beam offset that causes a Z-shift of the interference plane when the beams are combined.
Superimposed CGHs on metals using laser ablation of diffractive pixels
A special interference process allows the fabrication of computer-generated holography (CGH) as carrier of information which can’t be recognized with the human eye. The CGHs consist of N * M pixels which, when illuminated with coherent light, generate an imagine with the same pixel dimensions in a Fourier plane. Several CGHs can be written on the same area. When illuminated with the same coherent reading beam, they appear separately in different directions (diffraction orders).
This innovative approach combines the two known methods of Laser Induced Backside Wet Etching (LIBWE) and Stimulated Emission Depletion (STED) to realize laser based material modifications below the diffraction limit. This is especially useful for precision laser modifications of transparent materials.
Unintentional deformation of optical substrates is a common issue in optics technology. The mechanical stress in thin films can have a deleterious effect on the quality of the optical components by deforming the underlying substrate. This patent describes a figure correction method bases on stresses induced by irradiation of glass substrates with an excimer laser.
Preconnection element for the protection of hollow fibers
This invention is a further development to the flexible hollow fiber for pulse compression which was also developed at the Institut für Nanophotonik Göttingen e.V. (see Ref.: MM-2010-LLG). When laser light is coupled into hollow fibers, the problem often arises that parts of the light distribution can penetrate the thin wall (50-300 μm) and damage it by erosion/ablation/melting. This preconnection element provides a solution approach.
The technology describes a method to fabricate a virtually ideal wave guide for spectral broadening and high damage threshold. This is achieved by embedding a flexible hollow fiber at ideal straightness in a stretched stat in a thermally conductive solid medium, combining high transmission and high robustness even when high laser powers are coupled in. It is an advancement to the flexible hollow fiber developed at the Institut für Nanophotonik Göttingen e.V. (see reference MM-2010-LLG).